'New Year's Eve' Premiere: Zac Efron, Lea Michele Cozy Up To Costars

This year's biggest New Year's Eve party may actually have taken place nearly a month before the big night itself—at least, if the photos from last night's movie premiere for "New Year's Eve" is any indication. The star-studded ensemble cast was out in full force, dressed to the nines in appropriately glitzy gowns and well-tailored tuxes.

Granted, there are a few year-end accessories missing from the overall tableau; you won't see any paper hats, champagne showers or 10-second countdowns in our flipbook from the event...but hey, there is NYE poster boy Ryan Seacrest! Plus, great shots of Lea Michele snuggling up to Ashton Kutcher, Hilary Swank in a spangled minidress; Katherine Heigl and Sofia Vergara showing off their megawatt smiles; and, of course, Zac Efron getting nice and close to Michelle Pfeiffer. (That last pic may or may not launch a thousand May-December romance rumors—we've got hand-to-waist contact!)

Want to see a bevy of celebrity shots from the "New Year's Eve" party? Click through to view the full gallery!

Which pic from the night is your fave? Are you planning to see "New Year's Eve" when it hits theaters on Friday? Sound off in the comments and on Twitter!